SN74LVCZ16245A
16-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES278D – JUNE 1999 – REVISED AUGUST 2002
D
D
D
D
D
D
D
D
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
Member of the Texas Instruments
Widebus Family
Operates From 2.7 V to 3.6 V
Inputs Accept Voltages to 5.5 V
Max tpd of 3.7 ns at 3.3 V
Ioff and Power-Up 3-State Support Hot
Insertion
Supports Mixed-Mode Signal Operation on
All Ports (5-V Input/Output Voltage With
3.3-V VCC)
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
1DIR
1B1
1B2
GND
1B3
1B4
VCC
1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4
VCC
2B5
2B6
GND
2B7
2B8
2DIR
description/ordering information
This 16-bit (dual-octal) noninverting bus
transceiver is designed for 2.7-V to 3.6-V VCC
operation.
The SN74LVCZ16245A is designed for
asynchronous communication between data
buses. The control-function implementation
minimizes external timing requirements.
1
48
2
47
3
46
4
45
5
44
6
43
7
42
8
41
9
40
10
39
11
38
12
37
13
36
14
35
15
34
16
33
17
32
18
31
19
30
20
29
21
28
22
27
23
26
24
25
1OE
1A1
1A2
GND
1A3
1A4
VCC
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
VCC
2A5
2A6
GND
2A7
2A8
2OE
This device can be used as two 8-bit transceivers
or one 16-bit transceiver. It allows data
transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the
direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses
are effectively isolated.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
When VCC is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 1.5 V, OE should be tied to VCC through a pullup resistor;
the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
PACKAGE†
TA
TOP-SIDE
MARKING
Tube
SN74LVCZ16245ADL
Tape and reel
SN74LVCZ16245ADLR
TSSOP – DGG
Tape and reel
SN74LVCZ16245ADGGR
TVSOP – DGV
Tape and reel
SN74LVCZ16245ADGVR
SSOP – DL
–40°C
40°C to 85°C
ORDERABLE
PART NUMBER
LVCZ16245A
LVCZ16245A
CW245A
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Widebus is a trademark of Texas Instruments.
Copyright 2002, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SN74LVCZ16245A
16-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES278D – JUNE 1999 – REVISED AUGUST 2002
description/ordering information (continued)
This device is fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry
disables the outputs, preventing damaging current backflow through the device when it is powered down. The
power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,
which prevents driver conflict.
FUNCTION TABLE
(each 8-bit section)
INPUTS
OPERATION
OE
DIR
L
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
logic diagram (positive logic)
1DIR
1
2DIR
48
1A1
25
1OE
47
2A1
2
24
36
13
1B1
To Seven Other Channels
2
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2OE
To Seven Other Channels
• DALLAS, TEXAS 75265
2B1
SN74LVCZ16245A
16-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES278D – JUNE 1999 – REVISED AUGUST 2002
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 6.5 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 6.5 V
Voltage range applied to any output in the high-impedance or power-off state, VO
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 6.5 V
Voltage range applied to any output in the high or low state, VO
(see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V
Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
Continuous output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Continuous current through each VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100 mA
Package thermal impedance, θJA (see Note 3): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W
DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The value of VCC is provided in the recommended operating conditions table.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 4)
MIN
MAX
2.7
3.6
VCC
VIH
Supply voltage
VIL
VI
Low-level input voltage
VO
Output voltage
IOH
High level output current
High-level
VCC = 2.7 V
VCC = 3 V
–12
IOL
Low level output current
Low-level
VCC = 2.7 V
VCC = 3 V
12
∆t/∆v
Input transition rise or fall rate
∆t/∆VCC
TA
Power-up ramp rate
150
Operating free-air temperature
–40
High-level input voltage
VCC = 2.7 V to 3.6 V
VCC = 2.7 V to 3.6 V
2
UNIT
V
V
0.8
V
0
5.5
V
High or low state
0
3-state
0
VCC
5.5
V
Input voltage
–24
24
6
mA
mA
ns/V
µs/V
85
°C
NOTE 4: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
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• DALLAS, TEXAS 75265
3
SN74LVCZ16245A
16-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES278D – JUNE 1999 – REVISED AUGUST 2002
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
2.7 V to 3.6 V
IOH = –100 µA
VOH
2.7 V
IOH = –12
12 mA
IOH = –24 mA
IOL = 100 µA
VOL
II
Ioff
Control inputs
MIN
TYP†
MAX
VCC–0.2
2.2
3V
2.4
3V
2.2
UNIT
V
2.7 V to 3.6 V
0.2
IOL = 12 mA
IOL = 24 mA
2.7 V
0.4
3V
0.55
VI = 0 to 5.5 V
VI or VO = 5.5 V
3.6 V
±5
µA
0
±5
µA
V
IOZ‡
VO = 0 to 5.5 V
3.6 V
±5
µA
IOZPU
VO = 0.5 V to 2.5 V,
OE = don’t care
0 to 1.5 V
±5
µA
IOZPD
VO = 0.5 V to 2.5 V,
OE = don’t care
1.5 V to 0
±5
µA
ICC
VI = VCC or GND
3.6 V ≤ VI ≤ 5.5 V§
IO = 0
∆ICC
Ci
Control inputs
Cio
A or B ports
60
36V
3.6
One input at VCC – 0.6 V, Other inputs at VCC or GND
60
2.7 V to 3.6 V
VI = VCC or GND
VO = VCC or GND
500
µA
µA
3.3 V
5
pF
3.3 V
6.5
pF
† All typical values are at VCC = 3.3 V, TA = 25°C.
‡ For I/O ports, the parameter IOZ includes the input leakage current.
§ This applies in the disabled state only.
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figure 1)
FROM
(INPUT)
TO
(OUTPUT)
tpd
A or B
ten
OE
tdis
OE
PARAMETER
VCC = 2.7 V
MIN
VCC = 3.3 V
± 0.3 V
UNIT
MAX
MIN
MAX
B or A
4.2
1.3
4
ns
A or B
6.1
1.4
5.6
ns
A or B
7.1
2
6.6
ns
switching characteristics over recommended operating free-air temperature range, CL = 30 pF
(unless otherwise noted) (see Figure 1)
FROM
(INPUT)
TO
(OUTPUT)
tpd
A or B
ten
tdis
PARAMETER
4
VCC = 2.7 V
UNIT
MAX
MIN
MAX
B or A
3.9
1
3.7
ns
OE
A or B
5.9
1.1
5.4
ns
OE
A or B
6.7
1.6
6.2
ns
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• DALLAS, TEXAS 75265
MIN
VCC = 3.3 V
± 0.3 V
SN74LVCZ16245A
16-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES278D – JUNE 1999 – REVISED AUGUST 2002
operating characteristics, TA = 25°C
TEST
CONDITIONS
PARAMETER
Cpd
Outputs enabled
Power dissipation capacitance per transceiver
POST OFFICE BOX 655303
Outputs disabled
• DALLAS, TEXAS 75265
VCC = 3.3 V
TYP
UNIT
42
f = 10 MHz
4
pF
5
SN74LVCZ16245A
16-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES278D – JUNE 1999 – REVISED AUGUST 2002
PARAMETER MEASUREMENT INFORMATION
VCC = 2.7 V AND 3.3 V ± 0.3 V
2 × VCC
S1
500 Ω
From Output
Under Test
Open
GND
CL = 30 pF or 50 pF
(see Note A)
500 Ω
TEST
S1
tpd
tPLZ/tPZL
tPHZ/tPZH
Open
2 × VCC
GND
LOAD CIRCUIT
tw
VCC
Timing
Input
VCC/2
VCC/2
VCC/2
0V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VCC/2
VCC/2
0V
tPLH
Output
Control
(low-level
enabling)
tPLZ
VCC
VCC/2
tPZH
VOH
VCC/2
VOL
VCC/2
0V
Output
Waveform 1
S1 at 2 × VCC
(see Note B)
tPHL
VCC/2
VCC
VCC/2
tPZL
VCC
Input
VOLTAGE WAVEFORMS
PULSE DURATION
th
VCC
Data
Input
VCC/2
0V
0V
tsu
Output
VCC
VCC/2
Input
Output
Waveform 2
S1 at GND
(see Note B)
VOL + 0.3 V
VOL
tPHZ
VCC/2
VOH
VOH – 0.3 V
0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2 ns, tf ≤ 2 ns.
D. The outputs are measured one at a time with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
H. All parameters and waveforms are not applicable to all devices.
Figure 1. Load Circuit and Voltage Waveforms
6
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PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
SN74LVCZ16245ADGGR
ACTIVE
TSSOP
DGG
48
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
LVCZ16245A
SN74LVCZ16245ADGVR
ACTIVE
TVSOP
DGV
48
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
CW245A
SN74LVCZ16245ADL
ACTIVE
SSOP
DL
48
25
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
LVCZ16245A
SN74LVCZ16245ADLR
ACTIVE
SSOP
DL
48
1000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
LVCZ16245A
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of